Speaker



FIG. 1 is a front perspective view of a speaker showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a rear perspective view, in which a button feature is provided in a raised position to illustrate an example embodiment.

The broken lines illustrating portions of the speaker are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a speaker, as shown and described. 